Invention Grant
US5501323A Sealed dispenser system 失效
密封分配器系统

Sealed dispenser system
Abstract:
A sealed dispenser includes a cover having a first dispensing hole therein; a base having a second dispensing hole aligned with the first dispensing hole; and first and second flexible overlapping flaps mounted between the cover and base and covering the holes for forming a sealed barrier when the flaps are closed and permitting extraction of dispensable material when the flaps are opened.
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